CN201438481U - Lithium battery space ring and lithium battery employing same - Google Patents
Lithium battery space ring and lithium battery employing same Download PDFInfo
- Publication number
- CN201438481U CN201438481U CN2009201581336U CN200920158133U CN201438481U CN 201438481 U CN201438481 U CN 201438481U CN 2009201581336 U CN2009201581336 U CN 2009201581336U CN 200920158133 U CN200920158133 U CN 200920158133U CN 201438481 U CN201438481 U CN 201438481U
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- plate
- lithium battery
- groove
- spacer ring
- welding
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model belongs to the technical field of lithium batteries, and provides a lithium battery space ring and a lithium battery employing the space ring, wherein, the lithium battery is further provided with a battery cell, a housing and a cover plate and comprises a rectangular bottom plate with a tab groove and a liquid charging groove and four rectangular edge plates connected respectively with the four side surfaces of the bottom plate, grooves are arranged on the two surfaces of the connection part of the bottom plate and each edge plate, a limiting plate is arranged on the edge plate, and the bottom part of the limiting plate is coplanar with the side wall of the groove so that the four edge plates can be folded towards the same surface of the bottom plate to form a rectangular ring to separate the battery cell from the cover plate. According to the lithium battery provided by the utility model, during the tab's welding, the four walls of the space ring are folded backwards at a right angle to expose the welding position, with the welding point approaching the battery cell as much as possible; damage to the space ring as a result of the welding head colliding with the space ring during the tab's welding and the tab's welding with the cover plate can be obviated; and during the battery cell's entry into the housing, the wall of the space ring can be folded forwards in order to effectively avoid the occurrence of short circuit between the tab and the housing.
Description
Technical field
The present invention relates to lithium battery, relate in particular to a kind of lithium battery spacer ring and use the lithium battery of this spacer ring.
Background technology
Be in the quadrate lithium battery of shell mechanism with box hat or aluminum hull, the effect of spacer ring is that electric core and cover plate are isolated, and prevents battery short circuit.The structure of spacer ring directly influences welding operation and every performance of battery, so in the production of battery, must there be suitable spacer ring to be arranged in pairs or groups, make electric core that convenient welding is installed, reduce the core body play that battery vibrations in use cause, prevent lug and housing short circuit, and the liquid permeability of spacer ring to be got well.
The spacer ring that existing quadrate lithium battery adopts is generally three-dimensional single injection-molded structure, generally include base plate and sidewall, assembling process comprises after electric core is gone into shell and installs spacer ring additional, soldering polar ear and cover plate then, this spacer ring wall is non-rotatable and folding, make electric core spacer ring check rail when soldering polar ear live staff's sight line and be not easy to operation, and soldering tip is run into the spacer ring wall easily, cause spacer ring to damage, long for what avoid the general producer of this situation when making electric core, lug to be stayed, make the inside battery space diminish like this, be unfavorable for the lifting of lug welding back bending and battery capacity, and with lug and housing short risk.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of battery that makes things convenient for the battery spacer ring with folding structure of battery assembling and use this spacer ring is provided.
The technical scheme that realizes above purpose is:
A kind of lithium battery spacer ring, described lithium battery also has electric core, shell and cover plate, comprises the rectangular base plate that is provided with lug groove and fluid injection groove and four rectangle side boards being connected respectively of four sides with it, and the two sides of the connecting portion of described base plate and side plate is equipped with groove; Be provided with limiting plate on described side plate, the sidewall of its bottom and described groove is in same plane, makes described four side plates can fold and surround a rectangular loop to the same one side of base plate electric core and cover plate are isolated.
Described limiting plate is the modification of right-angled triangle plate of being located on the side plate.
On the other hand, the utility model also provides a kind of lithium battery:
This lithium battery, comprise electric core, spacer ring, cover plate, leader tape and shell, it is characterized in that: described spacer ring comprises the rectangular base plate that is provided with lug groove and fluid injection groove and four rectangle side boards being connected respectively of four sides with it, and the two sides of the connecting portion of described base plate and side plate is equipped with groove; Be provided with limiting plate on described side plate, the sidewall of its bottom and described groove is in same plane, and described four side plates fold and surround a rectangular loop with electric core and cover plate isolation to the same one side of base plate; The lug of described electric core passes described lug groove and is connected with contact on the cover plate through leader tape.
Described limiting plate is the modification of right-angled triangle plate of being located on the side plate.
The spacer ring of this battery can adopt material integral molded plastic moulding such as PP or PE.
Lithium battery spacer ring of the present utility model has following beneficial effect: the spacer ring wall can be turned down backward 90 degree during the lug welding, expose the welding position, solder joint can be tried one's best near electric core; Soldering tip is run into the spacer ring wall in the time of can avoiding the welding of lug welding and lug and cover plate, causes spacer ring to damage; The spacer ring wall is turned up forward when electric core is gone into shell can effectively prevent lug and housing short circuit.
Description of drawings
Fig. 1 is that the lithium battery spacer ring launches enlarged drawing according to the preferred embodiment of the invention.
Fig. 2 is a lithium battery spacer ring installation diagram according to the preferred embodiment of the invention.
Fig. 3 is lithium battery spacer ring bending according to the preferred embodiment of the invention.
The installation diagram of lithium battery according to the preferred embodiment of the invention shown in Figure 4.
Embodiment
Referring to Fig. 1, a kind of lithium battery spacer ring 30 comprises base plate 31 and four side plate 32-35.Base plate 31 is a rectangle, which is provided with lug groove 311 and fluid injection groove 312, and the both positive and negative polarity lug of lug groove 311 power supply cores passes, and fluid injection groove 312 is used for pouring into electrolyte to electric core.Side plate 32-35 is attached thereto respectively in four sides of base plate 31, is respectively equipped with groove 321,331,341 and 351 on two opposite faces of junction.On side plate 32 and 34, respectively be provided with two limiting plates 322 and 342, limiting plate 322 and 342 equal modification of right-angled triangle plate, one of its two right-angle side and side plate 32 and 34 intersect, the sidewall of another and groove 321 and 341 is in same plane, and side plate 32 can only be arrived and 31 one-tenth an angle of 90 degrees positions of base plate along groove 321 and 341 is folding forward with 34.On side plate 33 and 35, respectively be provided with a limiting plate 332 and 352, limiting plate 332 and 352 is modification of right-angled triangle plate, one of its two right-angle side and side plate 33 and 35 intersect, the sidewall of another and groove 331 and 351 is in same plane, and side plate 33 can only be arrived and 31 one-tenth an angle of 90 degrees positions of base plate along groove 331 and 351 is folding forward with 35.
Referring to Fig. 1-Fig. 4, a kind of lithium battery comprises shell 10, electric core 20, spacer ring 30 and cover plate 40.During assembling, the negative electrode lug 21 of electric core 20 and anode ear 22 pass the utmost point two grooves 311 of spacer ring 30.Each side plate 32-35 of spacer ring 30 is bent 90 degree backward along groove 321,331,341 and 351 respectively, be attached to each surface of electric core, so that each positive and negative lug is welded together respectively, solder joint is lug and cover plate welding and lug bending slot milling as far as possible near electric core front end.Stay a lug and leader tape 50 to weld after negative electrode lug 21 welding, solder joint 51, leader tape 50 is connected conducting with negative contacts on the cover plate 40.Stay a lug and leader tape 60 to weld after anode ear 22 welding, solder joint 61, leader tape 60 is connected conducting with positive contact on the cover plate 40.Then with each side plate 32-35 of spacer ring 30 respectively along groove 321,331,341 and 351 forward double flat make four side plate 32-35 surround a rectangular loop, limiting plate 322,332,342 and 352 bottom surface overlap with base plate 31, side plate 32-35 all becomes an angle of 90 degrees with base plate 31, promote spacer ring 30 backward and carry out electric core 20 and go into shell operation, electrolyte infiltrates the electric core 20 from fluid injection groove 312 and lug groove 311.
As seen from the above description, spacer ring of the present utility model can adopt suitable material integral molded plastic moulding, and manufacture process is simple and convenient.The side plate of spacer ring can be along groove by ± 90 degree rotary foldings during use, limiting plate can limit side plate angle folding degree, just surround a rectangular loop after making the spacer ring side plate folding, the base plate of spacer ring props up electric core, four side plates are turned up forward and are propped up cover plate, make spacer ring and cover plate interference fit better prevent electric core play, and prevent lug and housing short circuit, spacer ring fluid injection groove and the permeable electrolyte of lug groove, looking the big I of spacer ring suitably increases and decreases the quantity of fluid injection groove and changes its shape, the lug groove can increase and decrease according to electric core quantity in the shell, it is suitable that the quantity of general lug groove and electric core are drawn lug quantity, each lug is all drawn from corresponding lug hole respectively, also can suitably increase the lug well width several cell polar ears are drawn from a lug groove.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; should be understood that; for the person of ordinary skill of the art; every any modification of within spirit of the present utility model and principle, being done, be equal to and replace or improvement etc., all should be included within the protection range of the present utility model.
Claims (4)
1. lithium battery spacer ring, described lithium battery also has electric core, shell and cover plate, it is characterized in that: comprise the rectangular base plate that is provided with lug groove and fluid injection groove and four rectangle side boards being connected respectively of four sides with it, the two sides of the connecting portion of described base plate and side plate is equipped with groove; Be provided with limiting plate on described side plate, the sidewall of its bottom and described groove is in same plane, makes described four side plates can fold and surround a rectangular loop to the same one side of base plate electric core and cover plate are isolated.
2. lithium battery spacer ring according to claim 1 is characterized in that: described limiting plate is the modification of right-angled triangle plate of being located on the side plate.
3. lithium battery, comprise electric core, spacer ring, cover plate, leader tape and shell, it is characterized in that: described spacer ring comprises the rectangular base plate that is provided with lug groove and fluid injection groove and four rectangle side boards being connected respectively of four sides with it, and the two sides of the connecting portion of described base plate and side plate is equipped with groove; Be provided with limiting plate on described side plate, the sidewall of its bottom and described groove is in same plane, and described four side plates fold and surround a rectangular loop with electric core and cover plate isolation to the same one side of base plate; The lug of described electric core passes described lug groove and is connected with contact on the cover plate through leader tape.
4. lithium battery according to claim 3 is characterized in that: described limiting plate is the modification of right-angled triangle plate of being located on the side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201581336U CN201438481U (en) | 2009-06-08 | 2009-06-08 | Lithium battery space ring and lithium battery employing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201581336U CN201438481U (en) | 2009-06-08 | 2009-06-08 | Lithium battery space ring and lithium battery employing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201438481U true CN201438481U (en) | 2010-04-14 |
Family
ID=42400452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201581336U Expired - Fee Related CN201438481U (en) | 2009-06-08 | 2009-06-08 | Lithium battery space ring and lithium battery employing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201438481U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102479931A (en) * | 2010-11-30 | 2012-05-30 | 比亚迪股份有限公司 | Flexible-package battery and preparation method thereof |
| CN105336900A (en) * | 2014-07-31 | 2016-02-17 | 比亚迪股份有限公司 | Battery space ring, cell protection component and power battery |
| US10115939B2 (en) | 2013-08-23 | 2018-10-30 | Byd Company Limited | Battery cover plate assembly and battery having the same |
| US10243190B2 (en) | 2014-07-31 | 2019-03-26 | Byd Company Limited | Battery spacer, electric core protection assembly and power battery |
| CN113948821A (en) * | 2020-07-17 | 2022-01-18 | 比亚迪股份有限公司 | Battery space ring, battery and battery pack |
-
2009
- 2009-06-08 CN CN2009201581336U patent/CN201438481U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102479931A (en) * | 2010-11-30 | 2012-05-30 | 比亚迪股份有限公司 | Flexible-package battery and preparation method thereof |
| US10115939B2 (en) | 2013-08-23 | 2018-10-30 | Byd Company Limited | Battery cover plate assembly and battery having the same |
| CN105336900A (en) * | 2014-07-31 | 2016-02-17 | 比亚迪股份有限公司 | Battery space ring, cell protection component and power battery |
| US10243190B2 (en) | 2014-07-31 | 2019-03-26 | Byd Company Limited | Battery spacer, electric core protection assembly and power battery |
| CN113948821A (en) * | 2020-07-17 | 2022-01-18 | 比亚迪股份有限公司 | Battery space ring, battery and battery pack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100414 Termination date: 20150608 |
|
| EXPY | Termination of patent right or utility model |